TWI693543B - False connection processing method for triangular electrode pattern multi-touch, touch device and information processing device - Google Patents

Abstract

A false connection processing method for multi-touch of triangular electrode patterns is realized by a control circuit, and is characterized by comprising: a first tentative plan corresponding to a pair of triangular electrodes in a previous frame of touch data The effective sensed value and a second provisional effective sensed value corresponding to the pair of triangular electrodes in a frame of subsequent touch data are subjected to a bridge connection state judgment procedure. The bridge connection state judgment procedure includes: calculating the first provisional effective sense The difference between the measured value and the second provisionally valid sensed value; and comparing the difference with a first threshold to determine the previous touch data or the frame of the frame when the difference is less than the first threshold The touch data after the frame is a frame-connected touch data.

Description

False connection processing method for triangular electrode pattern multi-touch, touch device and information processing device

The present invention relates to a multi-touch sensing method for triangular electrode patterns, in particular to a false connection processing method for multi-touch triangular electrode patterns.

Today's technology is changing rapidly. With the development of touch technology, capacitive touch screens have become more and more widely used in various types of terminal devices, such as smart watches and other wearable devices, as well as smart home and other fields. on. At present, the touch sensing structures used in the touch screen include a single-layer self-capacitance touch sensing structure and a double-layer mutual capacitance touch sensing structure.

However, in general, a touch screen with a single-layer self-capacitance touch sensing structure will be sensed due to the bridge connection state generated by the multi-touch operation under certain multi-touch operations To false vertical or horizontal lines. Please refer to FIG. 1 and FIG. 2 together. FIG. 1 shows a schematic diagram of a conventional vertical touch line with a single-layer self-capacitance touch sensing structure; and FIG. 2 shows A schematic diagram of a conventional touch device having a single-layer self-capacitance touch sensing structure that senses a false horizontal scribe line.

As shown in FIG. 1, a single-layer self-capacitance touch sensing structure 10 has a vertical triangular sensing electrode pattern, and a user first presses a touch point A on a pair of triangular electrodes with a finger, and Before the finger is separated from touch point A, press another finger quickly under touch point A, another touch point B located on the same pair of triangular electrodes, a bridge connection state will be generated between touch point A and touch point B , So that the touch device senses a false vertical line 11. In addition, as shown in FIG. 2, a single-layer self-capacitance touch sensing structure 10 has a vertical triangular sensing electrode pattern, and a user first presses a touch point A on a first pair of triangular electrodes with a finger , And before the finger has left the touch point A, quickly press another finger on the right side of the touch point A, another touch point on a second pair of triangular electrodes adjacent to the first pair of triangular electrodes B, a bridge connection state is generated between the touch point A and the touch point B, and the touch device senses a false horizontal scribe line 12.

In order to solve the above-mentioned problems, a novel self-capacitance touch sensing method for a single-layer triangular electrode structure is urgently needed in the art.

An object of the present invention is to disclose a false connection processing method for triangular electrode pattern multi-touch, which can determine whether a bridge connection state exists by comparing a frame of previous touch data and a frame of subsequent touch data , Thereby providing the function of eliminating false connections.

Another object of the present invention is to disclose a touch device that can provide a function of eliminating false connections by performing a false connection processing method for multi-touch of triangular electrode patterns.

Another object of the present invention is to disclose an information processing device having a touch device, and the touch device can provide a false connection elimination method by performing a false connection processing method for triangular electrode pattern multi-touch Function.

In order to achieve the aforementioned objective, a method for processing false connections for triangular electrode pattern multi-touch is proposed, which is implemented using a control circuit, and is characterized by including:

Perform a bridge based on a first provisional effective sensing value corresponding to a pair of triangular electrodes in the previous frame of touch data and a second provisional effective sensing value corresponding to the pair of triangular electrodes in a frame of subsequent touch data A connection state judgment program, the bridge connection state judgment program includes: calculating the difference between the first provisional effective sensed value and the second provisional effective sensed value; and comparing the difference with a first threshold to When the difference is less than the first threshold, it is determined that the touch data of the previous frame or the touch data of the subsequent frame is a frame-connected touch data.

In one embodiment, the method for processing false connections for triangular electrode pattern multi-touch further includes: discarding the touch coordinates calculated from each frame of the bridge connection state touch data.

In an embodiment, both the first provisional effective sensing value and the second provisional effective sensing value are sensing values greater than a second threshold.

To achieve the foregoing objective, the present invention further provides a touch device having a triangular electrode pattern structure and a control circuit for driving the triangular electrode pattern structure. The control circuit is used to perform a multi-touch false connection Processing method, and the characteristics of the processing method include:

Perform a bridge based on a first provisional effective sensing value corresponding to a pair of triangular electrodes in the previous frame of touch data and a second provisional effective sensing value corresponding to the pair of triangular electrodes in a frame of subsequent touch data A connection state judgment program, the bridge connection state judgment program includes: calculating the difference between the first provisional effective sensed value and the second provisional effective sensed value; and comparing the difference with a first threshold to When the difference is less than the first threshold, it is determined that the touch data of the previous frame or the touch data of the subsequent frame is a frame-connected touch data.

In an embodiment, the multi-touch false connection processing method further includes: discarding the touch coordinates calculated from each frame of the bridge connection state touch data.

In an embodiment, both the first provisional effective sensing value and the second provisional effective sensing value are sensing values greater than a second threshold.

In addition, the present invention also provides an information processing device having a central processing unit and the aforementioned touch device, wherein the central processing unit is used to receive coordinate information of multiple touch points output by the touch device.

In a possible embodiment, the information processing device may be a smart phone or a portable computer device.

In order to enable your review committee to further understand the structure, features and purpose of the present invention, the drawings and detailed description of the preferred embodiments are attached as follows.

Please refer to FIG. 3, which is a flowchart of an embodiment of a false connection processing method for multi-touch of triangular electrode patterns according to the present invention. The false connection processing method is implemented by a control circuit. As shown in FIG. 3, the false connection processing method includes: detecting a first provisional effective sensing value corresponding to a pair of triangular electrodes in a previous frame of touch data and a frame of subsequent touch data A second provisional effective sensing value corresponding to the triangular electrode (step a); a bridge connection state judgment procedure is performed according to the first provisional effective sensing value and the second provisional effective sensing value. The bridge connection status judgment procedure includes : Calculate the difference between the first provisional effective sensing value and the second provisional effective sensing value; and compare the difference with a first threshold to determine the difference when the difference is less than the first threshold The first frame of touch data or the next frame of touch data is a frame of bridge connection state touch data (step b); and discard the touch coordinates calculated from each frame of bridge connection state touch data (step c) .

In step a, both the first provisional effective sensing value and the second provisional effective sensing value are sensing values greater than a second threshold. That is to say, when a sensed value is greater than the second threshold, the sensed value will be tentatively determined as a touch value, and then it is determined in step b whether it corresponds to a false touch point.

Please refer to FIG. 4, which illustrates a schematic diagram of an execution process of a false connection processing method for multi-touch of triangular electrode patterns in FIG. 3 for a vertical jump operation. As shown in FIG. 4, a first frame of touch data has a tentatively effective sensing value (18246, 7040); a second frame of touch data has a tentatively effective sensing value (15807, 16979); and a third frame of touch The data has provisional effective sensing values (12167, 17803). In this embodiment, the first threshold is 3000 and the second threshold is 5000. For the first frame of touch data and the second frame of touch data, since 18246-15807=2439<3000, there is a bridge connection state between the first frame of touch data and the second frame of touch data; and, As for the second frame of touch data and the third frame of touch data, since 17803-16979=824<3000, there is a bridge connection state between the second frame of touch data and the third frame of touch data. In addition, when calculating the touch coordinates, taking the provisional effective sensing value (18246, 7040) as an example, the position of the touch point can be determined in a pair of vertical triangular electrodes according to the ratio of 18246:7040. According to this, the present invention can discard the coordinates of each false longitudinal bridge point by judging that the bridge connection state retains the coordinates of the two end points.

Please refer to FIG. 5, which illustrates a schematic diagram of an execution process of a false connection processing method for multi-touch of triangular electrode patterns in FIG. 3 for a lateral jump operation. As shown in FIG. 5, since a first frame of touch data has a tentatively effective sensing value (13186, 12159); a second frame of touch data has a tentatively effective sensing value (10653, 9694), (4897, 6978) And (11074, 9219); and a third frame of touch data has provisional effective sensing values (5096, 8060) and (14400, 12291). In this embodiment, the first threshold is 3000 and the second threshold is 5000. As far as the first frame of touch data and the second frame of touch data are concerned, since 13186-10653=2533<3000, there is a bridge connection state between the first frame of touch data and the second frame of touch data; For the second frame of touch data and the third frame of touch data, since 6978-6060=918<3000, there is a bridge connection between the second frame of touch data and the third frame of touch data. According to this, the present invention can discard the coordinates of each false horizontal bridge point in the middle by judging that the bridge connection state retains the coordinates of the two end points.

According to the above description, the present invention further provides a touch device. Please refer to FIG. 6, which illustrates a block diagram of an embodiment of the touch device of the present invention. As shown in FIG. 6, a touch device 100 has a triangular electrode pattern structure 110 and a control circuit 120 for driving the triangular electrode pattern structure 110. The control circuit 120 is used to execute the process shown in FIG. Method for processing false connection of triangular electrode pattern multi-touch to eliminate false connection.

According to the above description, the present invention further provides an information processing device. Please refer to FIG. 7, which illustrates a block diagram of an embodiment of the information processing device of the present invention. As shown in FIG. 7, an information processing device 200 has a central processing unit 210 and a touch device 220, wherein the touch device 220 has a triangular electrode pattern structure 221 and a control for driving the triangular electrode pattern structure 221 Circuit 222, the control circuit 222 is used to execute the false connection processing method for triangular electrode pattern multi-touch as shown in FIG. 3 to eliminate the false connection, and the central processing unit 210 is used to receive all The coordinate information of the multiple touch points output by the touch device 220 is described.

In addition, in a possible embodiment, the information processing device may be a smart phone or a portable computer device.

With the technical solutions disclosed above, the present invention can provide the following advantages:

Without adding a hardware circuit, the false connection problem or jitter state caused by the bridge connection state can be effectively eliminated in a software manner.

The case disclosed in this case is a preferred embodiment, and any part of the modification or modification that originates from the technical idea of this case and can be easily inferred by those skilled in the art, does not deviate from the patent scope of this case.

In summary, regardless of the purpose, means and effects of this case, it shows that it is very different from the conventional technology, and its first invention is practical and practical, and it does meet the patent requirements of the invention. I urge your review committee to investigate and give the patent to the AirPlus as soon as possible. Society is for supreme prayer.

10: Single layer self-capacitance touch sensing structure

11: False vertical underline

12: False horizontal underline

100: touch device

110: Triangle electrode pattern structure

120: control circuit

200: Information processing device

210: central processing unit

220: Touch device

221: Triangle electrode pattern structure

222: control circuit

Step a: Detecting a first provisional effective sensing value corresponding to a pair of triangular electrodes in a previous frame of touch data and a second provisional effective sensing corresponding to the pair of triangular electrodes in a frame of subsequent touch data Measured value

Step b: Perform a bridge connection state judgment procedure based on the first tentative effective sensing value and the second tentative effective sensing value. The bridge connection state judgment procedure includes: calculating the first tentative effective sensing value and the second tentative The difference of the effective sensing value; and comparing the difference with a first threshold to determine that the touch data of the previous frame or the touch data of the next frame is the touch data when the difference is less than the first threshold One-frame bridge connection status touch data

Step c: Discard the touch coordinates calculated from the touch data of the bridge connection status of each frame

FIG. 1 shows a schematic diagram of a conventional vertical scribe line sensed by a conventional touch device having a single-layer self-capacitance touch sensing structure. FIG. 2 is a schematic diagram of a conventional touch device having a single-layer self-capacitance touch sensing structure that senses a false horizontal scribe line. FIG. 3 is a flow chart of an embodiment of a method for processing false connections of a triangular electrode pattern for multi-touch. FIG. 4 is a schematic diagram of an execution process of a false connection processing method for multi-touch of triangular electrode patterns in FIG. 3 for a vertical jump operation. FIG. 5 illustrates a schematic diagram of an execution process of a false connection processing method for multi-touch of triangular electrode patterns in FIG. 3 for a lateral jump operation. 6 is a block diagram of an embodiment of the touch device of the present invention. FIG. 7 shows a block diagram of an embodiment of the information processing device of the present invention.

Step a: Detecting a first provisional effective sensing value corresponding to a pair of triangular electrodes in a previous frame of touch data and a second provisional effective sensing corresponding to the pair of triangular electrodes in a frame of subsequent touch data Measured value

Step b: Perform a bridge connection state judgment procedure according to the first tentative effective sensing value and the second tentative effective sensing value. The bridge connection state judgment procedure includes: calculating the first tentative effective sensing value and the second tentative The difference of the effective sensing value; and comparing the difference with a first threshold to determine that the touch data of the previous frame or the touch data of the next frame is the touch data when the difference is less than the first threshold One-frame bridge connection status touch data

Step c: Discard the touch coordinates calculated from the touch data of the bridge connection status of each frame

Claims (6)

A false connection processing method for multi-touch of triangular electrode patterns is realized by a control circuit, and is characterized by comprising: a first tentative plan corresponding to a pair of triangular electrodes in a previous frame of touch data The effective sensed value and a second provisional effective sensed value corresponding to the pair of triangular electrodes in a frame of subsequent touch data are subjected to a bridge connection state judgment procedure. The bridge connection state judgment procedure includes: calculating the first provisional effective sense The difference between the measured value and the second provisionally valid sensed value; and comparing the difference with a first threshold to determine the previous touch data or the frame of the frame when the difference is less than the first threshold The touch data after the frame is a frame of bridge connection state touch data; and the touch coordinates calculated from the bridge connection state touch data of each frame are discarded. The false connection processing method for triangular electrode pattern multi-touch as described in item 1 of the patent scope, wherein the first provisional effective sensing value and the second provisional effective sensing value are both greater than a first The sensing value of the second threshold. A touch device having a triangular electrode pattern structure and a control circuit for driving the triangular electrode pattern structure, the control circuit is used to execute a multi-touch false connection processing method, and the characteristics of the processing method It includes: a first provisional effective sensing value corresponding to a pair of triangular electrodes in a previous frame of touch data and a second provisional effective sensing corresponding to the pair of triangular electrodes in a frame of subsequent touch data Value to perform a bridge connection state judgment procedure, the bridge connection state judgment procedure including: calculating the difference between the first provisional effective sensed value and the second provisional effective sensed value; and comparing the difference with a first threshold , When the difference is less than the first threshold, determine that the previous touch data of the frame or the touch data of the subsequent frame is a frame of bridge connection state touch data; and discard the bridge connection state touch for each frame The touch coordinates calculated by the data. The touch device as described in item 3 of the patent application range, wherein the first provisional effective sensing value and the second provisional effective sensing value are both sensing values greater than a second threshold. An information processing device having a central processing unit and the touch device as described in any one of items 3-4 of the patent application scope, wherein the central processing unit is used to receive the touch device Coordinate information of multiple touch points output. The information processing device described in item 5 of the patent application scope is a smart phone or a portable computer device.

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